Waco YMF-5D .91-1.20 ARF Manual

10
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4. Connect a 30" [760mm] servo lead extension to the
right wing servo. Secure the connection with heat shrink
tubing or tape. Route the servo lead through the wing and
install the servo bay cover using four #2 x 3/8" [9.5mm] sheet
metal screws and four #2 flat washers.
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5. Line up and install the aileron control horns using the
same method recommended earlier for the bottom wing. Drill
two 1/2" [12.7mm] deep holes using a 1/16" [1.6mm] drill.
Install the horns with two #2 x 1/2" [12.7mm] sheet metal
screws per horn.
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6. Prepare two 12" [305mm] one-end threaded pushrods
using two clevises and two silicone retainers.
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7. Fit the clevis to the outer hole in the control horn. Mark
and bend the rod as you did earlier. Clip off the excess
pushrod wire leaving 1/4" [6.4mm] of wire and fit the pushrod
to the outer hole of the servo arm. Secure the pushrod at the
servo arm with a nylon Faslink. Adjust the pushrod length at
the clevis. Secure the clevis with the silicone retainer.
Top wing center
section to cabane
(x4)
Cabane strut to
fuselage bracket
(x4)
Interplane
strut bracket
(x8)
140°
115°
105°
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8. Identify the bag of four steel brackets for the top wing
center section. These are the brackets that have the 140°
bend angle (or the brackets with the flattest bend).
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9. Use four #4 x 1/2" [12.7mm] sheet metal screws
to attach the brackets to the wing center section in the
orientation shown so that they are angled inward toward the
fuselage center line. Remove the screws and brackets and
harden the screw holes with thin CA. Reinstall the brackets.
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10. Attach the guide string in the wing center section to
the long servo extension of the right wing aileron servo. Pull
the servo lead through the center section and route the lead
through the hole in the front left corner of the bottom of the
center section. Leave the guide string attached until after
you have glued together the wings.